We divide 189825 by 90
We want to figure out the number of times 189825 can be divided by 90.

Moving on to step 1:
90 can be fit into 1 0 times, resulting in a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Include the next digit (8) from the dividend after 1, then repeat: 18 / 90

Let's proceed to step 2:
If we divide 18 by 90, we get 0 and a remainder of 18.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 18, we end up with 18.
Take the next digit (9) from the dividend and append it to 18, then repeat: 189 / 90

Let's proceed to step 3:
When dividing 189 by 90, we get 2 with a remainder of 9.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
The remainder is 9 after subtracting 180 from 189.
Bring next digit (8) of the dividend behind the 9 and repeat the process: 98 / 90

Going ahead to step 4:
98 divided by 90 is 1 with a remainder of 8.
Write down 1 as next digit of the result. 
Result so far: 21.0
If we subtract 90 from 98, we get 8.
Bring next digit (2) of the dividend behind the 8 and repeat the process: 82 / 90

On to step 5:
If we divide 82 by 90, we get 0 and a remainder of 82.
Use 0 as the next digit of our solution. 
Result so far: 210.0
The remainder is 82 after subtracting 0 from 82.
Grab the next digit (5) from the dividend, add it to 82, then carry on: 825 / 90

Moving on to step 6:
90 can be fit into 825 9 times, resulting in a remainder of 15.
The next digit of our result is 9. 
Result so far: 2109.0
The remainder is 15 after subtracting 810 from 825.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Going ahead to step 7:
If we divide 150 by 90, we get 1 and a remainder of 60.
The next digit of our result is 1. 
Result so far: 2109.1
The remainder is 60 after subtracting 90 from 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 8:
When dividing 600 by 90, we get 6 with a remainder of 60.
Record the quotient 6 as the next digit in the result. 
Result so far: 2109.16
If we take 540 away from 600, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 9:
When dividing 600 by 90, we get 6 with a remainder of 60.
The number 6 becomes the next digit in our result. 
Result so far: 2109.166
Deduct 540 from 600 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

The final outcome is 2109.166, with a leftover of 0.006.